I shot 2 rounds of 5 in 1 blanks, 44-40 cal. thru my Uberti 1858 Remington. The primer had a demple on it but no bang. I put them in my Uberti Henry rifle and they shot fine. A while back I shot 6 rounds of live 44-40 and had no problem at all. Has anyone had any problems shooting blanks in their Uberti Rem? Thanks.